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( Modem 2 SheetsSheet 1.

F. B. BROOK. DRIVING BELT.

No. 370,237. Patented Sept. 20, 1887.

L L L L L L L L 1 Q g Q 1 E z LL L LL LLLL canoe/W601 (No Model.) 2Sheets-Sheet 2.

P. B.--BROOK..

DRIVING BELT.

No. 370,237. Patented Sept. 20, 1887.

UNITED STATES PATENT OFFICE.

FENELON B. BROOK, OF WASHINGTON, DISTRICT OF COLUMBIA, ASSIGNOR TOCHARLES A. SOHIEREN, OF BROOKLYN, NEW YORK.

DRIVING-BELT.

SPECIFICATION forming part of Letters Patent No. 370,237, datedSeptember 20, 1887.

Application filed April 13, 1887. Serial No. 234,690.

To all whom it may concern:

Be it known that I, FENELoN B. BROOK, a citizen of the United States,residing at Washington, in the District of Columbia, have inventedcertain new and useful Improvements in Link Driving- Belts; and I dodeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being bad to theaccompanying drawings, and to theletters and figures of reference markedthereon, which form a part of this specification.

Figure 1 is aplanview of alink driving-belt embodying my invention. Fig.2 is a transverse section of the belt. Fig. 3 is a perspective view ofone of the central links. Fig. 4 is a detail horizontal section showingthe man- 2c nor in which the central links are secured to thebelt-sections.

The object of my invention is to provide a link driving-belt with aseries of central flexible links which allow 0f the belt being madeflexible along its middle portion for the pur pose of using it oncrown-pulleys.

\Vith this purpose in view my invention consists in the followingconstruction and combination of parts hereinafter described, and

fully set forth in the claim.

A is a belt. It is composed of two parallel sections, 1 2, united by aseparate series of bolts, 3 and 4. T

5 are the central flexible links, curved as 5 shown in the drawings. Theend of each link is secured by a bolt, 3, of section 1 of the belt, andthe other end of each link is secured to the section 2 of the belt byabolt, 4. The two sections 1 2 of the belt Aare thus tied together by thecentral links, 5, but which at the same time permit lateral flexure ofthe belt along its middle portion. None of the bolts 3 and 4 extendclear through the belt A, but only through a section, 1 or 2, thereof.

By my improved form of central link I am (No model.)

enabled to obtain a maximum frictional hold upon the pulley by thecental links, 5, and at the same time obtain the desired flexibility ofthe belt along its center.

I may use central links, 5, of varying thick nesses, as shall be deemedbest adapted. Where comparatively thick central links, 5, are used I maycompress and form the link so that it will retain the shape shown inFig. 3.

The overlapping of the lateral break-joint links 5 produces aninterlocking joint in the direction of the length of the belt, (betweenthe belt-sections 1 and 2,) the effect of which is to counteract anytendency of one belt-section to move faster than the other, due to a 50sudden shock or to unequal strains upon the belt-sections.

Various Ways of securing the central links in place may be employed, myinvention being designed to cover any belt provided with a central linkarranged similarly to those herein described and shown.

The links of which the belt is composed are preferably made fromleather.

Fig. 4 shows clearly the manner of uniting the belt sections 1 and 2 bythe central lateral break joint links, 5. The pins or bolts 3 and 4 areheaded or riveted upon opposite sides ofthe links 5, and extend inopposite directions to the outer edges of the belt.

I claim as new and desire to secure by Letters Patent of the UnitedStates A drivingbelt composed of longitudinal sections, a series ofconnecting flexible links 0verlapped at the ends, and a series of pinsinserted alternately from opposite sides through the belt-sections andthrough alternate ends of the connecting-links, substantially as setforth.

In testimony whereofI affix my signature in presence of two witnesses.

FENELON B. BROOK.

WVitnesses:

W. T. JOHNSON, A. W. J OHNSON.

